W66881CF

W66881CF GENERAL DESCRIPTION The W66881CF is a VFD (Vacuum Fluorescent Display) controller/driver. It has two operation configurations: (1) 8×16 Configuration which replaces the W66880CF without the necessity of changing the original driver program for W66880CF, and (2) 8×20 Configuration which provides more segment drivers, and can be programmed to drive a VFD from 4 grids by 20 segments to 8 grids by 18 segments. The W66881CF also includes a 24-key key scan circuit, four LED ports and four general purpose input ports. Data communication with the W66881CF is via a serial interface. FEATURES Flexible display modes (4 to 8 grids) − 4 grids × 20 segments to 8 grids × 18 segments 6 × 4 matrix key scanning Functional Block (8x20 configuration) VFD CONTROLLER/DRIVER 8 steps dimming circuit High voltage output (VDD - VEE = 30V max) Four 15 mA LED ports Four general-purpose input port Internal driver output pull-down resisters Only one external resister is needed for the on chip oscillator Simple serial interface Driver program compatible with W66880CF's (8x16 only) 48-pin PQFP APPLICATIONS VFD display driving and panel function control Applicable to FUTABA Standardized VFD Panel - Part#: 6-BT-265GK and 6-BT-267GK, both 6 grids × 16 segments, for VCD Player - Part#: 25u48109BAN, 6 grids × 19 segments, for DVD Player Pin Configuration OSC V SS LED1 LED2 LED3 LED4 V DD G1 G2 G3 G4 G5 Din Dout CLK STB VDD R OSC Key[1:4] Serial interface OSC 4 Display mem...